Update Github Action workflows to use node 24.

Author: msporny

.github/workflows/gh-pages.yml

@@ -25,10 +25,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout/@v4
-      - name: Setup Node 16
+      - name: Setup Node 24
         uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 24
       - name: Generate Security Vocabulary
         run: |
           npm install yml2vocab

.github/workflows/lint-vocab.yml

@@ -10,11 +10,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup environment
-        uses: actions/checkout/@v3
-      - name: Setup Node 16
-        uses: actions/setup-node@v3
+        uses: actions/checkout/@v5
+      - name: Setup Node 24
+        uses: actions/setup-node@v5
         with:
-          node-version: 16
+          node-version: 24
       - name: Lint Security Vocabulary
         run: |
           npm install yml2vocab